eeeck
2a2cb42b0b
Introduce `O_FLAG` variable for `-Os` to centralize optimization setting for CFLAGS and LDFLAGS.
46 lines
849 B
Makefile
46 lines
849 B
Makefile
PROJECT = vase-control
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MCU = atmega328p
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F_CPU = 16000000UL
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CC = avr-gcc
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LD = $(CC)
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OC = avr-objcopy
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RM = rm -f
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O_FLAG = -Os
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BUILD_DIR = build
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OBJ_DIR = $(BUILD_DIR)/obj
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SRCS_C = source/adc.c source/moisture.c source/main.c source/pump.c
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OBJS = $(addprefix $(OBJ_DIR)/, $(notdir $(SRCS_C:.c=.o)))
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CFLAGS = -Wall $(O_FLAG) -DF_CPU=$(F_CPU) -mmcu=$(MCU) -Iinclude
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LDFLAGS = -Wall $(O_FLAG) -mmcu=$(MCU)
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LIBS = -lm
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EXEC = atmega
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ELF_TARGET = $(BUILD_DIR)/$(EXEC).elf
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TARGET = $(BUILD_DIR)/$(EXEC).hex
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all: $(TARGET)
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$(shell mkdir -p $(OBJ_DIR))
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$(shell mkdir -p $(BUILD_DIR))
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$(ELF_TARGET): $(OBJS)
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$(LD) $(LDFLAGS) $(OBJS) -o $@ $(LIBS)
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$(OBJ_DIR)/%.o: source/%.c
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$(CC) $(CFLAGS) -c $< -o $@
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$(TARGET): $(ELF_TARGET)
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$(OC) -O ihex -R .eeprom $< $@
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clean:
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$(RM) $(TARGET) $(ELF_TARGET) $(OBJS)
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$(RM) -r $(BUILD_DIR)
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.PHONY: all clean
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